Endless loop when accessing http://localhost:8080 directly

[nknapp]

Nice project, it will definetely help us save bandwidth when installing npm-modules.

The following will put this module into an endless loop (at least on Linux)

npm install -g npm-proxy-cache
npm-proxy-cache &
curl http://localhost:8080

I am now running npm-proxy-cache in a docker-container where the 8082 is mapped on 8080 within the container. Still, if you do

export http_proxy=http://localhost:8082
curl http://localhost:8080

The endless-loop starts again.

[nknapp]

I would probably

• create a random header name X-NPM-PROXY-CACHE-<random-number>,
• send this header along with every proxied request
• reject any request that has this header set

This should make sure that requests never pass this proxy twice.

[runk]

Thanks for the feedback, merged your PR.

v0.7.0 is out.